Rabbits Marcie has 4 rabbits

named Rosie, Clark, Peep, and Lewis. One is
orange, one gray, one black, and one spotted.
Rosie is orange. Lewis is not gray. Peep is
black. What color is Clark? Explain how you
found your answer.

Lewis must be spotted since he isn't orange, gray or black.

What does that leave for Peep?